This chapter describes how to configure Oracle Jolt. “Quick Configuration” is for users who are familiar with Jolt. The other sections provide more detailed information. It is presumed that readers are system administrators or application developers who have experience with the operating systems and workstation platforms on which they are configuring Oracle Jolt.
Quick Configuration contains the information you need to configure the Jolt Server Listener (JSL) on Oracle Tuxedo and covers the following procedures:
1.
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In the MACHINES section, specify MAXWSCLIENTS=number (Required).
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Note:
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If MAXWSCLIENTS is not set, JSL does not boot.
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2.
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In the GROUPS section, set GROUPNAME required parameters [ optional parameters].
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3.
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Set the SERVERS section (Required).
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JSL required parameters [
optional parameters]
where JSL specifies the file (
string_value) to be executed by
tmboot(1).
The Oracle Jolt Repository Server (JREPSVR) contains services for accessing and editing the Repository. Multiple
JREPSVR instances share repository information through a shared file. Include
JREPSVR in the
SERVERS section of the
UBBCONFIG file.
2.
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Specify the -W flag for one (and only one) JREPSVR to ensure that you can edit the repository. (Without this flag, the repository is read-only.)
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3.
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Type the -P flag to specify the path of the repository file. (An error message is displayed in the Oracle Tuxedo ULOG file if the argument for the -P flag is not entered.)
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1.
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Set the CLASSPATH to include the Jolt class directory or the directory where the *.jar files reside.
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1.
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Set the CLASSPATH to include the Jolt class directory.
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file:full-pathname/RE.html
Note:
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If jolt.jar and admin.jar are in the same directory as RE.html, the Web server provides the classes. If they are not in the same directory as RE.html, modify the applet code base.
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The Packages and
Services command buttons are enabled.
Note that only the Packages,
Services, and
Log Off command buttons are enabled. All of the text entry fields are disabled.
1.
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Click Back in a previous window to return to the Repository Editor Logon window.
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2.
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Click Log Off to terminate the connection with the server.
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3.
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Click Close from your browser menu to close the window.
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In the SERVERS sections of the
UBBCONFIG file,
specify the SRVGRP and SRVID.
SOCKETTIMEOUT is the time in seconds for which JRLY Windows 2003 service blocks for network activity (new connections, data to be read, closed connections).
SOCKETTIMEOUT also affects the Service Control Manager (SCM). When the SCM requests the Windows 2003 service to stop, the SCM must wait for at least
SOCKETTIMEOUT seconds before quitting.
1.
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Type tmloadcf -y <UBBFILE>.
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1.
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Type -l hexadecimal format (The JSL port to which the JRLY connects on behalf of the client.)
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2.
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Type -c hexadecimal format (The address of the corresponding JSL to which JRAD connects.)
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Jolt Server Listener (JSL)—the JSL is configured to support clients on an IP/port combination.The JSL works with the Jolt Server Handler (JSH) to provide client connectivity to the back-end of the Oracle Jolt system. The JSL runs as an Oracle Tuxedo server.
Jolt Server Handler (JSH)—the JSH is a program that runs on an Oracle Tuxedo server machine to provide a network connection point for remote clients. The JSH works with the JSL to provide client connectivity residing on the back-end of the Oracle Jolt system. More than one JSH can be available to the JSL, up to 32,767. (Refer to the description of the
-M command-line option in
“JSL Command-line Options” on page 3‑13 for additional information.)
See Administering an Oracle Tuxedo Application at Run Time or the
Oracle Tuxedo Command Reference for information about
tmloadcf and
tmboot.
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If the JSH, gets a message with the caller’s identity, it calls impersonate_user() to get the appkey for the user. JSH caches the appkey, so the next time the caller makes a request, the appkey is retrieved from the cache and the request is forwarded to the service. A cache is maintained by each JSH, which means that there will be a cache maintained for all the session pools connected to the same JSH.
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[-c compression_threshold]
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compression_threshold is a number that you specify between 0 and 2,147,483,647 bytes. Any messages that are larger than the specified compression threshold are compressed before transmission.
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Specifies the network address mask Jolt clients use to connect to the application when there is network address translation. The JSL process uses this address to listen for clients attempting to connect at this address. If the external address mask is 0x0002MMMMdddddddd and the JSH network address is 0x00021111ffffffff, the known (or external) network address is 0x00021111dddddddd. If the address starts with "//" network address, the type is IP based and the TCP/IP port number of the JSH network address is copied into the address to form the combined network address.
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[-K {client | handler | both | none}]
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The maximum number of JSHs that are available in conjunction with the JSL at one time. If this option is not specified, the parameter defaults to the MAXWSCLIENTS divided by the -x multiplexing factor (MPX), with the result rounded up. If specified, the -M option takes a value from 1 to 32,767. (Optional)
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The domain finds an address for hostname by using the local name resolution facilities (usually DNS). hostname must be the local machine, and the local name resolution facilities must unambiguously resolve hostname to the address of the local machine.
Note: IPv6 does not support hexadecimal format
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This option can be used together with the -T option. When either timeout reached, JSH will close the session.
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The JSL -s option is equivalent to the ISL(5) and WSL(5) -S option. For more information see, Section 5 - File Formats, Data Descriptions, MIBs, and System Processes Reference.
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When the -j ANY or -j RECONNECT option is used, always specify -T with an idle timeout value. If -T is not specified and the connection is suspended, JSH does not automatically terminate the session. The session never terminates if a client abnormally ends the session.
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Specifies the minimum level of encryption when establishing a network connection between a Jolt client and the JSH. 0 means no encryption while 56, 128, and 256 specify the length (in bits) of the encryption key. If this minimum level of encryption cannot be met, a connection will not be established.
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Jolt Relay (JRLY)—the JRLY is the Jolt Relay front-end. It is not an Oracle Tuxedo client or server and is not dependent on the Oracle Tuxedo version. It is a stand-alone software component. It requires only minimal configuration to allow it to work with Jolt clients.
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Jolt Relay Adapter (JRAD)—the JRAD is the Jolt Relay back-end. It is an Oracle Tuxedo system server, but does not include any Oracle Tuxedo services. It requires command-line arguments to allow it to work with the JSL and the Oracle Tuxedo system.
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The -start and -stop commands require that you have Windows 2003 Service control access. These requirements are based on Windows 2003 user restrictions.
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jrly -install [display_suffix]
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Install jrly as a Windows 2003 service.
In this case, an instance of JRLY is installed as a Windows 2003 Service and is displayed in the SCM as Jolt Relay_MASTER. The suffix, MASTER, does not have any significance; it is only used to uniquely identify various instances of JRLYs.
At this point, this instance of JRLY is not ready to start. It must be assigned the configuration file (see the set command discussion) that specifies the listening TCP/IP port, JSH connection TCP/IP port, log files, and sockettimeout. This file should not be shared between various instances of JRLY.
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jrly -remove [display_suffix] | -all
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If [display_suffix] is specified, this command removes the specified JRLY service.
If [display_suffix] is not specified, this command removes the default JRLY from being a Windows 2003 Service.
If the -all option is specified, all JRLY Windows 2003 Services are removed. Related Windows 2003 registry entries under
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jrly -set [-d display_suffix] -f config_file
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Here, the JRLY Windows 2003 Service instance, called Jolt Relay_MASTER is assigned a configuration file called jrly_master.con that is located in c:\tuxdir\udataobj\jolt directory.
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jrly -manual [display_suffix]
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jrly -auto [display_suffix]
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jrly -start [display_suffix]
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jrly -stop [display_suffix]
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Note:
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SOCKETTIMEOUT is the duration (in seconds) of which the relay Windows 2003 service blocks the establishment of new socket connections to allow network activity (new connections, data to be read, closed connections). It is valid only on Windows 2003 machines. SOCKETTIMEOUT also affects the SCM. When the SCM requests that the service stop, the SCM needs to wait at least SOCKETTIMEOUT seconds before doing so.
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Listing 3‑4 shows an example of the JRLY configuration file. The
CONNECT line specifies the IP address and port number of JRAD machine.
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IP is a dotted notation IP address, port is a decimal number
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IP is a dotted notation IP address, port is a decimal number
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Table 3‑6 contains additional information about the
CLOPT parameters.
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The domain finds an address for hostname by using the local name resolution facilities (usually DNS). hostname must be the local machine, and the local name resolution facilities must unambiguously resolve hostname to the address of the local machine.
Note: IPv6 does not support hexadecimal format.
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Note:
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Unlike the JSL -H option, the JRAD -H option is not used as a network address translator, nor is it used as an address mask. IPv6 does not support the JRAD -H option.
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0x0002pppphhhhhhhh
(where pppp is the port number and hhhhhhhh is the hexadecimal IP address)
Listing 3‑5 shows the sample JRAD entry in UBBCONFIG file.
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LISTEN: Location where the clients connect.
CONNECT: Location of your JRAD. Must match the -l parameter of JRAD.
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-l: Location where the listener connects to the JRLY.
-c: Location of JSL. Must match -n parameter of JSL.
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-n: Location of JSL. Must match -c parameter of JRAD.
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To configure the Oracle Jolt Repository, modify the application UBBCONFIG file. The
UBBCONFIG file is an ASCII version of the Oracle Tuxedo configuration file. Create a new
UBBCONFIG file for each application. See the
Oracle Tuxedo Command Reference for information regarding the syntax of the entries for the file.
Listing 3‑6 shows relevant portions of the
UBBCONFIG file.
Note:
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For UNIX systems, use the slash (/) when setting the path to the jrepository file (for example, app/repository). For Windows 2003 systems, use the backslash ( \) and specify the drive name (for example, c:\app\repository).
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A GROUPS entry is required for the group that includes the Oracle Jolt Repository. The group name parameter is a name selected by the application.
The Jolt Repository Server, JREPSVR, contains services for accessing and editing the repository. Multiple
JREPSVR instances share repository information through a shared file. Include
JREPSVR in the
SERVERS section of the
UBBCONFIG file.
2.
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Specify the -W flag for one JREPSVR to ensure that you can edit the Repository. The Repository is read-only without this flag.
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3.
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Type the -P flag to specify the path of the repository file. An error message is displayed in the Oracle Tuxedo ULOG file if the argument for the -P flag is not entered.
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5.
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Boot the Oracle Tuxedo system using the tmloadcf command (for example, tmloadcf -y ubbconfig) and tmboot command. See Administering an Oracle Tuxedo Application at Run Time for information about tmloadcf and tmboot.
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A repository file, jrepository, is available with Oracle Jolt. This file includes
bankapp services and the repository services that you can modify, test, and delete using the Repository Editor.
Start with the jrepository file provided with the installation, even if you are not going to test the
bankapp application with Oracle Jolt. Delete the
bankapp packages or services that you do not need.
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Unsolicited Event Notifications—a Jolt client receives these notifications as a result of a Oracle Tuxedo client or service subscribing to unsolicited events, and an Oracle Tuxedo client issuing a broadcast (using either a tpbroadcast() or a directly targeted message via a tpnotify() ATMI call). Unsolicited event notifications do not need the TMUSREVT server.
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Brokered Event Notifications—a Jolt client receives these notifications through the Oracle Tuxedo Event Broker. The notifications are only received when both Jolt clients subscribe to an event and any Oracle Tuxedo client or server posts an event using tppost(). Brokered event notifications require the TMUSREVT server.
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Configure the Oracle Tuxedo TMUSREVT server and modify the application
UBBCONFIG file.
Listing 3‑7 shows the relevant sections of
TMUSREVT parameters in the
UBBCONFIG file. See
Programming Oracle Tuxedo ATMI Applications Using C for information about the syntax of the entries for the file.
In the SERVERS section of the
UBBCONFIG file, modify the
SRVGRP and
SRVID parameters as needed.
Filtering is a process that allows you to customize a subscription. If you require additional information about the Oracle Tuxedo Event Broker, subscribing to events, or filtering, refer to
Programming Oracle Tuxedo ATMI Applications Using C.
1.
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Copy the my.flds file to /usr/me/bankapp directory.
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2.
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Add my.flds to the FIELDTBLS variable in the TMUSREVT.ENV file as shown in the following listing:
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If ENVFILE="/usr/me/bankapp/TMUSREVT.ENV" is included in the definition of the
UBBCONFIG file (shown in the listing
“UBBCONFIG File” on page 3‑32), the
FIELDTBLS and
FLDTBLDIR definitions are taken from the
TMUSREVT.ENV file and not from your environment variable settings.
If you remove the ENVFILE="/usr/me/bankapp/TMUSREVT.ENV" definition, the
FIELDTBLS and
FLDTBLDIR definitions are taken from your environment variable settings. The
FIELDTBLS and
FLDTBLDIR definitions must be set to the appropriate value prior to booting the Oracle Tuxedo system.
You can make changes to the UBBCONFIG file with your preferred text editor. Then, at a time when your application is not running, and when you are logged in to your MASTER machine, you can recompile your
TUXCONFIG by running
tmloadcf(1). System/T prompts you to make sure you really want to overwrite your existing
TUXCONFIG file. (If you enter the command with the
-y option, the prompt is suppressed.)
A binary configuration file called the TUXCONFIG file contains information used by
tmboot(1) to start the servers and initialize the bulletin board of an Oracle Tuxedo system in an orderly sequence. The binary
TUXCONFIG file cannot be created directly. Initially, you must create a
UBBCONFIG file. That file is parsed and loaded into the
TUXCONFIG using
tmloadcf(1). Then
tmadmin(1) uses the configuration file or a copy of it in its monitoring activity.
tmshutdown(1) references the configuration file for information needed to shut down the application.
The UBBCONFIG file can consist of up to nine specification sections. Lines beginning with an asterisk (*) indicate the beginning of a specification section. Each such line contains the name of the section immediately following the *. Allowable section names are:
RESOURCES, MACHINES, GROUPS, NETGROUPS, NETWORK, SERVERS, SERVICES, INTERFACES, and ROUTING.
Note:
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The RESOURCES (if used) and MACHINES sections must be the first two sections, in that order; the GROUPS section must be ahead of SERVERS, SERVICES, and ROUTING.
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Listing 3‑9 shows relevant portions of the
UBBCONFIG file.
The MACHINES section specifies the logical names for physical machines for the configuration. It also specifies parameters specific to a given machine. The
MACHINES section must contain an entry for each physical processor used by the application. Entries have the form:
ADDRESS or NAME required parameters [optional parameters]
where ADDRESS is the physical name of the processor, for example, the value produced by the UNIX system
uname -n command.
This parameter specifies that the string_value is to be used in other sections as the symbolic name for
ADDRESS. This name cannot contain a comma, and must be 30 characters or less. This parameter is required. There must be an
LMID line for every machine used in a configuration.
The MAXWSCLIENTS parameter is required in the
MACHINES section of the configuration file. It specifies the number of accesser entries on this processor to be reserved for Jolt and Workstation clients only. The value of this parameter must be between 0 and 32,768, inclusive.
The Jolt Server and Workstation use MAXWSCLIENTS in the same way. For example, if 200 slots are configured for
MAXWSCLIENTS, this number configures Oracle Tuxedo for the total number of remote clients used by Jolt and Workstation.
Be sure to specify MAXWSCLIENTS in the configuration file. If it is not specified, the default is 0.
Note:
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If MAXWSCLIENTS is not set, the JSL does not boot.
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GROUPNAME required parameters [optional parameters]
where GROUPNAME specifies the logical name (string_value) of the group. The group name must be unique within all group names in the
GROUPS section and
LMID values in the
MACHINES section. The group name cannot contain an asterisk(*), comma, or colon, and must be 30 characters or less.
A GROUPS entry is required for the group that includes the Jolt Server Listener (JSL). Make the
GROUPS entry as follows:
Note:
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Make sure that Resource Managers are not assigned as a default value for all groups in the GROUPS section of your UBBCONFIG file. Making Resource Managers the default value assigns a Resource Manager to the JSL and you receive an error during tmboot. In the SERVERS section, default values for RESTART, MAXGEN, etc., are acceptable defaults for the JSL.
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AOUT required parameters [optional parameters]
where AOUT specifies the file (
string_value) to be executed by
tmboot(1).
tmboot executes
AOUT on the machine specified for the server group to which the server belongs.
tmboot searches for the
AOUT file on its target machine, thus,
AOUT must exist in a file system on that machine. (Of course, the path to
AOUT can include RFS connections to file systems on other machines.) If a relative pathname for a server is given, the search for
AOUT is done sequentially in
APPDIR,
TUXDIR/bin,
/bin, and then in
path, where
<path> is the value of the last
PATH= line appearing in the machine environment file, if one exists. The values for
APPDIR and
TUXDIR are taken from the appropriate machine entry in the
TUXCONFIG file.
This parameter specifies the group name for the group in which the server is to run. string_value must be the logical name associated with a server group in the
*GROUPS section, and must be 30 characters or less. This association with an entry in the *
GROUPS section means that
AOUT is executed on the machine with the
LMID specified for the server group. This association also specifies the
GRPNO for the server group and parameters to pass when the associated resource manager is opened. All server entries must have a server group parameter specified.
This parameter specifies an identifier, an integer between 1 and 30,000, inclusive, that identifies this server within its group. This parameter is required on every server entry, even if the group has only one server. If multiple occurrences of servers are desired, do not use consecutive numbers for
SRVIDs; leave enough room for the system to assign additional
SRVIDs up to
MAX.
Boot parameters are used by tmboot when it executes a server. Once running, a server reads its entry from the configuration file to determine its run-time options. The unique server identification number is used to find the right entry. The following are boot parameters.
The CLOPT parameter specifies a string of command-line options to be passed to
AOUT when booted.The
servopts(5) page in the
File Formats, Data Descriptions, MIBs, and System Processes Reference lists the valid parameters.
The default value for the CLOPT parameter is
-A, which means that the server is started with all available services advertised.
This parameter specifies when to shut down or boot relative to other servers. If SEQUENCE is not specified, servers are booted in the order found in the
SERVERS section (and shut down in the reverse order). If some servers have sequence numbers specified and others do not, all servers with sequence numbers are booted first from low to high sequence number, then all servers without sequence numbers are booted in the order in which they appear in the configuration file. Sequence numbers range between 1 and 9999. If the same sequence number is assigned to more than one server,
tmboot may boot those servers in parallel.
The MIN parameter specifies the minimum number of occurrences of the server to boot by
tmboot. If an
RQADDR is specified, and
MIN is greater than 1, the servers form a multiple servers single queue (MSSQ) set. The identifiers for the servers are
SRVID up to (
SRVID + (
MAX -1)). All occurrences of the server have the same sequence numbers as well as any other server parameters. The value range for
MIN is 0 to 1000. If
MIN is not specified, the default value is 1.
The MAX parameter sets the maximum number of occurrences of the server to be booted. Initially,
tmboot boots
MIN servers, and additional servers can be booted up to
MAX occurrences using the
-i option of
tmboot to specify the associated server identifier. The value range for
MAX is 0 to 1000. If no value is specified for
MAX, the default is the same as for
MIN, or 1.
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tmboot starts MIN occurrences unless you explicitly call for more with the -i SRVID option of tmboot.
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If RQADDR is specified and MIN is greater than one, an MSSQ set is formed
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If MIN is not specified, the default is 1.
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If MAX is not specified, the default is MIN.
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MAX is especially important for conversational servers because they are spawned automatically as needed.
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“APPDIR:TUXDIR/bin:/bin:path”
where path is the value of the last
PATH= line appearing in the
ENVFILE file. The following parameters are run-time parameters.
You can use the ENVFILE parameter for a server to add values to the environment established by
tmboot during initialization of the server. You can optionally set variables specified in the file named in the
SERVERS ENVFILE parameter after you set those in the
MACHINES ENVFILE used by
tmboot. These files cannot be used to override
TUXDIR, APDIR, TUXCONFIG, or
TUSOFFSET. The best policy is to include in the server’s
ENVFILE only those variable assignments known to be needed to ensure proper running of the application.
On the server, the ENVFILE file is processed
after the server starts. Therefore, it cannot be used to set the pathnames used to find executable or dynamically loaded files needed to execute the server. If you need to perform these tasks, use the machine
ENVFILE instead.
Within ENVFILE only lines of the form
are allowed. VARIABLE must start with an underscore or alphabetic character and can contain only underscore or alphanumeric characters. If the server is associated with a server group that can be migrated to a second machine, the
ENVFILE must be in the same location on both machines.
CONV specifies whether the server is a conversational server.
CONV takes a
Y value if a conversational server is being defined. Connections can only be made to conversational servers. For a request/response server, you can either set
CONV=N, which is the default, or omit the parameter.
RQADDR assigns a symbolic name to the request queue of this server. MSSQ sets are established by using the same symbolic name for more than one server (or by specifying
MIN greater than 1). All members of an MSSQ set must offer an identical set of services and must be in the same server group.
If RQADDR is not specified, the system assigns a unique key to serve as the queue address for this server. However,
tmadmin commands that take a queue address as an argument are easier to use if queues are given symbolic names.
Use the RQPERM parameter to assign UNIX-style permissions to the request queue for this server. The value of
number can be between 0001 and 0777, inclusive. If no parameter is specified, the permissions value of the bulletin board, as specified by
PERM in the
RESOURCES section, is used. If no value is specified there, the default of 0666 is used (the default exposes your application to possible use by any login on the system, so consider this carefully).
The REPLYQ parameter specifies whether a reply queue, separate from the request queue, should be established for
AOUT. If
N is specified, the reply queue is created on the same
LMID as the
AOUT. If only one server is using the request queue, replies can be retrieved from the request queue without causing problems. However, if the server is a member of an MSSQ set and contains services programmed to receive reply messages,
REPLYQ should be set to
Y so that an individual reply queue is created for this server. If set to
N, the reply is sent to the request queue shared by all servers for the MSSQ set, and you cannot ensure that the reply will be picked up by the server that is waiting for it.
Use the RPPERM parameter to assign permissions to the reply queue.
number is specified in the usual UNIX fashion (for example, 0600); the value can be between 0001 and 0777, inclusive. If
RPPERM is not specified, the default value 0666 is used. This parameter is useful only when
REPLYQ=Y. If requests and replies are read from the same queue, only
RQPERM is needed;
RPPERM is ignored.
The RESTART parameter takes a
Y or
N to indicate whether
AOUT is restartable. The default is
N. If the server is in a group that can be migrated,
RESTART must be
Y. A server started with a
SIGTERM signal cannot be restarted; it must be rebooted.
If AOUT is restartable, this parameter specifies the command that should be executed when
AOUT abnormally terminates. The string, up to the first space or tab, must be the name of an executable UNIX file, either a full pathname or relative to
APPDIR. (Do not attempt to set a shell variable at the beginning of the command.) Optionally, the command name can be followed by command-line arguments. Two additional arguments are appended to the command line: the
GRPNO and
SRVID associated with the restarting server.
string_value is executed in parallel with restarting the server.
You can use the RCMD parameter to specify a command to be executed in parallel with the restarting of the server. The command must be an executable UNIX system file residing in a directory on the server’s
PATH. An example is a command that sends a customized message to the userlog to mark the restarting of the server.
If AOUT is restartable, this parameter specifies that it can be restarted at most (
number - 1) times within the period specified by
GRACE. The value must be greater than 0 and less than 256. If not specified, the default is 1 (which means that the server can be started once, but not restarted). If the server is to be restartable,
MAXGEN must be equal to or greater than 2.
RESTART must be
Y or
MAXGEN is ignored.
If RESTART is
Y, the
GRACE parameter specifies the time period (in seconds) during which this server can be restarted, (
MAXGEN - 1) times. The number assigned must be equal to or greater than 0, and less than 2,147,483,648 seconds (or a little more than 68 years). If
GRACE is not specified the default is 86,400 seconds (24 hours). Setting
GRACE to 0 removes all limitations; the server can be restarted an unlimited number of times.
You can use Oracle Tuxedo parameters, including RESTART, RQADDR, and
REPLYQ, with the JSL. (See
Administering an Oracle Tuxedo Application at Run Time for additional information regarding run-time parameters.) Enter the following parameters:
1.
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To identify the SRVGRP parameter, type the previously defined group name value from the GROUPS section.
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2.
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To indicate the SRVID, type a number between 1 and 30,000 that identifies the server within its group.
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Type the SEQUENCE parameter to determine the order that the servers are booted.
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Specify Y to permit release of the RESTART parameter.
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Type 0 to permit an infinite number of server restarts using the GRACE parameter.
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